Hardin Gen 7 Plus Seawater / Impeller Pumps

aero3113 · November 7

Removed my Starboard pump today and will be sending it to Hardin to be rebuilt. It had a steady drip when running.

aero3113 · November 7

I also replaced the impeller on my port pump. The inner and outer plates were scored pretty good but the impeller was still in good shape. This was with three seasons of use.

Image: https://us.v-cdn.net/5020499/uploads/editor/hl/fixr3bxdt4os.jpeg

Image: https://us.v-cdn.net/5020499/uploads/editor/na/rb0tpr0tw0q1.jpeg

aero3113 · November 7

I normally put them back together using Permitex Aviation Gasket sealer. It always made a mess and was a pain when I had to remove the gasket. This time I used DC-111 (Silicone Grease). Should make it much easier to take apart next time.

TonyG13 · November 7

@aero3113 - Curious: Three season equates to how many engine hours?

aero3113 · November 7

@TonyG13 , I never really kept track of hours per season. Maybe 120 hrs for the three.

aero3113 · November 14

I sent my leaking starboard pump into Hardin for a rebuild. They said it’s $35/hr. Plus parts. I figured to have them do it, this way it will be covered under warranty if it leaks early.

aero3113 · November 21

Will have my pump back on Wednesday, $154.35 for the rebuild. This includes a new impeller/parts and shipping as well.

LaRea · November 21

Dang, I should have charged that much for all those rebuilds I did back in the day!

aero3113 · November 21

LoL, @LaRea !
Its actually not a bad deal if you think about how much the rebuild and impeller kits cost.

captkevin · November 21

UPS charges are outrageous as well. We get all kinds of complaints at work of people claiming we are ripping them off. All they get charged is what we get charged - no mark up.

aero3113 · November 21

Agree @captkevin they changed $24.36 for UPS shipping. I shipped it to them via USPS and it was $24.55.

rasbury · November 21

The hard part is removing the pump why are you paying somebody to rebuild it?

aero3113 · November 21

@rasbury it wasn’t just replacing the impeller.
I don’t have a press to remove and install the bearings. This pump was leaking.

Ian · November 22

aero3113 said:

Agree @captkevin they changed $24.36 for UPS shipping. I shipped it to them via USPS and it was $24.55.

With UPS you get tracking. With USPS you get the chance for them to lose it.

aero3113 · November 22

LoL, you do get tracking with USPS but I feel most of the time the tracking number doesn’t work!’

Dream_Inn · November 22

My son said today that he was looking forward to using Lareas press that we bought from him. I’m looking forward to it too!😀

Formulaben · November 24

aero3113 said:

I don’t have a press to remove and install the bearings.

I bought this on a whim, but I can't tell you how many times it's been used and borrowed. For sure, there is better quality but for the price it's hard to beat. I added some polyurethane wheels to easily move it around and it's quite a popular tool to lend out.

https://www.harborfreight.com/12-ton-h-frame-floor-shop-press-70604.html

I also highly recommend this to complement it:
https://www.amazon.com/dp/B08954GW18/

LaRea · November 25

That's similar to the press I had. I agree -- once you have it, you'll find plenty of jobs that need it.

Dream_Inn · November 25

LaRea said:

That's similar to the press I had. I agree -- once you have it, you'll find plenty of jobs that need it.

I'm about ready to break out the press. I still need to order the kit to repair it. Do you happen to remember the part number of the kit from Hardin?

aero3113 · November 25

@Dream_Inn not sure if these numbers help, they are for the Gen 7 plus.

aero3113 · November 25

Received the rebuilt pump today.

rasbury · November 25

That looks to pretty to put on! I am so due...

captkevin · November 25

agree - should be on display

Ian · November 26

Apart from impellers I had the first OEM rebuild last year on port engine due to leaking shaft. Mine is a 2003 model…

Is the “prettiness” worth the cost?

aero3113 · November 26

When I bought my 330 both of the OEM pumps were leaking. I went with the Hardin pumps because of the removable wear plates. I’m happy with them, this was the 5th season using this pump before it started leaking. I’m not regretting them but yes, they should last longer before the seals wear.

YYZRC · November 26

Seems like the Hardin solved a problem that very few people had (wear on the inside end of the pump) but created a bigger problem in that the seals and/or bearings fail much sooner than the OEM pump seals/bearings.

But yes, to your point @Ian , they sure are pretty!

aero3113 · November 26

I’m hoping that they’re replacing the seals with better quality now. My port pump has been leak free since it was rebuilt a few years ago.

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Hardin Gen 7 Plus Seawater / Impeller Pumps

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